Breaking link to Acces database (2003 sp2)

Hello,

I have a workbook that has 3 links to a MS Access database. I created them with ms query. Now I need to create a "frozen" situation.
This means that the data will still be available but the possibility of updating the data should be removed.

The data is the source of several pivot tables. Since the data is based on an import which is overwritten every month I need to have a way to keep the output of a specific month and still keep the flexibility of the pivot tables.
Does anyone know if this is possible?

I don't mind if this solution is in VBA but my knowledge on this subject is limited.